1402043424240 has 320 divisors, whose sum is σ = 4553894532096. Its totient is φ = 356505255936.

The previous prime is 1402043424193. The next prime is 1402043424241. The reversal of 1402043424240 is 424243402041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1402043424198 and 1402043424207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402043424241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 88712179 + ... + 88727981.

Almost surely, 2^{1402043424240} is an apocalyptic number.

1402043424240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1402043424240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2276947266048).

1402043424240 is an abundant number, since it is smaller than the sum of its proper divisors (3151851107856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1402043424240 is a wasteful number, since it uses less digits than its factorization.

1402043424240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16056 (or 16050 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 1402043424240 its reverse (424243402041), we get a palindrome (1826286826281).

The spelling of 1402043424240 in words is "one trillion, four hundred two billion, forty-three million, four hundred twenty-four thousand, two hundred forty".